Bug 110920 - [CI][SHARDS] igt@kms_color@pipe-[abc]-ctm-0-(25|75) - fail - Failed assertion: success
Summary: [CI][SHARDS] igt@kms_color@pipe-[abc]-ctm-0-(25|75) - fail - Failed assertion...
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: high normal
Assignee: Uma Shankar
QA Contact: Intel GFX Bugs mailing list
Whiteboard: ReadyForDev
Depends on:
Reported: 2019-06-14 13:18 UTC by Martin Peres
Modified: 2019-06-28 07:41 UTC (History)
1 user (show)

See Also:
i915 platform: ICL
i915 features: display/color management


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Description Martin Peres 2019-06-14 13:18:37 UTC
Enabling Multi-segmented-gamma for ICL[1] regresses igt@kms_color@pipe-[abc]-ctm-0-(25|75) due to unexpected rounding.

The problem needs to be addressed on the IGT side (comparing to different acceptable rounding values) and/or by re-implementing the test on top of pipe writeback.

In the mean time, let's have this bug to document the effort.

[1] https://patchwork.freedesktop.org/series/60126/


Starting subtest: pipe-B-ctm-0-25
(kms_color:1190) CRITICAL: Test assertion failure function run_tests_for_pipe, file ../tests/kms_color.c:985:
(kms_color:1190) CRITICAL: Failed assertion: success
Comment 1 Martin Peres 2019-06-14 13:19:40 UTC
Assigning Uma, since he is the author of multi-segmented gamma, and it is his responsibility to make sure that we do not regress our test coverage.
Comment 3 emersion 2019-06-28 07:41:26 UTC
This issue is hit every few hours.

User impact: test coverage issue, we're not able to check that Color Transformation matrices work properly.

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